66650405

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1\times {\mathrm{691}}^1$

素因数の和:988

約数の個数: 16

約数和(自身を含む): 81312768

約数和(自身を除く): 14662363

約数列:

[1, 5, 101, 191, 505, 691, 955, 3455, 19291, 69791, 96455, 131981, 348955, 659905, 13330081, 66650405]

約数ペア:

[(1, 66650405), (5, 13330081), (101, 659905), (191, 348955), (505, 131981), (691, 96455), (955, 69791), (3455, 19291)]